code: def main(argv):
      del argv
      if FLAGS.test_only or FLAGS.evaluate or FLAGS.analyze:
          evaluate()
      else:
          train()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import gc
  import math
  import os
  from absl import app
  from absl import flags
  from absl import logging
  import clueweb_text_graph
  import dataset
  import graph
  import losses
  import metrics
  import models
  import numpy
  import slim
  from tensorboard.plugins import projector
  import tensorflow
  from tensorflow.python.training.summary_io import SummaryWriterCache
  import text_graph
  import utils
label_desc: Use image node_id 7 for calling a global function with example usage: main(argv) without return types